Arrangement of internal-combustion engines on locomotives



Aug. 4, 1925.

J. GEIGER ARRANGEMENT OF INTERNAL COMBUSTION ENGINES ON L OCOIVIOTIVESFiled May 22, 1923 Patented Aug. 4, 1925.

UNITED STATES 1,548,359 PATENT OFFICE.

JOSEF G-EIGEB, OF AUGSBUBG, GERMANY, ASSIGNOR TO MASCHINENFABRIK .AUGS-BUM-NUERNBERG, A CORPORATION OF GERMANY.

ARRANGEMENT OF INTERNAL-COMBUSTION ENGINES ON LOCOMOTIVES.

Application filed May 22, 1923. Seriaf No. 640,802.

To all whom it may concern:

Be it known that I, JosEF GEIGER, a citizen of the German Republic, andresident of Augsbur Bavaria, Germany, have in vented certaln new anduseful Improvements in the Arrangement of Internal-Combustion Engines onLocomotives, of which the following is a specification.

In the employment of internal combustion engines on high powerlocomotives great difiiculties are usually encountered in suitablyaccommodating engines of the required size within the restricted spacewhich is at disposal upon such locomotives. This is especially the casewhen the engine has to be placed" co-longitudinally with the locomotive,as then onl the room above the axles of the car up tot e top boundaryline as given by the height of the car frame could be used.

The invention, now, provides for an arrangement which enables theinstallation, on

. locomotives, of lengthwise disposed engines-of considerably largefsizethan has been heretofore possible. Theincrease in height according tothe invention amounts to as much as approximately half the length of theengine stroke so that engines of considerably larger output may beinstalled.

According to the invention the engine is so arranged that its cranks aredisposed within the space between the driving axles of the locomotive,it being only necessary, for the purpose, to make the distance betweenthe said axles equal to a whole figure multiple of the distance betweeneach two engine cylinders. The base plates upon which the enginesareusually mounted and upon which the crank shafts are journalled may bedispensed with and the engine suspended in standards. At the bottom theengine may be closed up by a sheet metal lagging.

If correspondingly large driving wheels are used for the locomotive, thearrangement according to the invention will permit of disposing thecrank shaft below the driving axles and to thereby eflect an additionalgain in the height of the available engin room. a

Further advantages of the arrangement according to the invention are thelocation of the centre of gravity very low down in the car, aconsiderable savin in weight and material owing to the omisslon of thebase or foundation plate, and an improved "accessibility of the crankshaft, the bearings and the working parts of the engine from below, asonly the sheet metal lagging has to he removed in order to render theseparts accessible from the working pit. The crank shaft, being suspended,may be romoved from below in a most simple manner without having todismantle the engine.

The accompanying drawing diagrammatically illustrates the invention byway of example. v

Fig. 1 is a part sectional side elevation of a portion of a motorlocomotive.

, Fig. 2 is a cross section of Fig. 1 taken through one of the mainbearings and the driving wheels of the car, parts being shown inelevation.

In this drawing 1 denotes the cylinder and 2 the piston of amulti-cylinder Diesel engine disposed lengthways within a motorlocomotive. The crank shaft 3 is journalled in main bearings 4 which aresuspended in standards 5. Sheet metal leggings 6 serve to close thecrank case at the bottom. It is evident from the drawing, that in anarrangement according to the invention the distance a between thedriving axles of the locomotive must be a whole figure multiple of thedistance b between the cylinders. In the example shown it is three timesthat distance. The bearing brasses 7 within which the crank pins arecarried are connected to the standards 5 by means of strong bolts 8, andin order to compensate for wear .in the main bearings, the top brasses 9are made adustable by the interposition of wedge pieces 10 between thesaid brasses and the standards.

What I claim is 1. The combination with a locomotive having a pluralityof axles, of a multi-cylinder internal combustion engine mountedlengthwise of the locomotive and having its crank shaft supported inbearings, certain of which lie in vertical planes, passing through thelocomotive axles, whereby its cranks ply in the spaces between saidaxles.

2. In a motor locomotive in which the internal combustion engine isarranged colongitudinally with a multiple cylinder locomotive, means tosuspend the crank shaft directly above the axles of the locomotive so asto permit of the cranks plying into the space between the said axles.

8. In a motor locomotive in which amultiple cylinder internal combustionengine is arranged co-longitudinally with the locomotive, thearrangement whereby the distance between the driving axles of thelocomotive is a whole figure multiple of the distance between each twoengine cylinders.

4. In a motor locomotive in combination with a multiple cylinderinternal combustion engine arranged co-longitudinally with thelocomotive, standards to suspend the crank shaft directly above theaxles of the locomotive without. requiring the use of a foundation plateand so as to permit of the cranks plying into the space between the saiddriving axles.

5. The combination with a locomotive having a plurality of coupledaxles, of a multicylinder internal combustion engine mounted lengthwiseof the locomotive above the axles and having its crank shaft mounted inbearings suspended in standards, certain of these bearings lying invertical planes passing through the locomotive axles, and the shaftbeing .so supported that its cranks ply in the spaces between saidaxles.

In witness whereof I aflix m signature. EIGER. Witnesses:

A. C. HoUcH'roN,

ALEXIS Pmmrrnm.

